Merge pull request #706 from planemad/mongokit

CSS Major updates
Error resolved in get_group_type() templatetag
conflict resolved
Error for preferred language resolved in Browse topic app
Merge pull request #707 from supriyasawant/mongokit

Preferred Language error relsolved in Browse topic app when user is not logged in.
code added for displaying CR resources on each topics landing page
code added for fetching the resources and differentiate into 8 defined categories for topic
commented conflicting tag for time being
Merge pull request #709 from sunnychaudhari/mywork

Resources has been displayed on topic landing page
bug resolved in get_preferred_lang
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
comment removed
Merge pull request #710 from supriyasawant/mongokit

bug resolved in get_preferred_lang
Pandora videos redundant display resolved
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
minor change made in fetch_wetube_video script
Merge pull request #711 from supriyasawant/mongokit

Pandora Videos redundancy resolved
update hi translation
Update logo size